MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to redirect users to malicious websites or download further payloads. Several heuristics indicate the PDF is part of a link farm, with many URLs pointing to compromised or disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/f17917d3aa5490a5b5ae22fcb44275ec/58670119389.pdf
- https://www.theoakshealthcare.com/my_content/js/ckfinder/userfiles/files/15418251088.pdf
- http://55pluscommunityspecialist.com/userfiles/files/52221778093.pdf
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072dc0ef190e---fogonixenofu.pdf
- http://star-transform-moscow.ru/uimg/files/raxujarenomajut.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c010e3b69f5---21062721294.pdf
- http://scamps.biz/userfiles/file/18729274532.pdf
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609499dcdb364---tarurufex.pdf
- http://www.conectadoscomdeus.tv/arquivos/file/79493774792.pdf
- http://4bx.pl/public/file/39886412792.pdf
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6375a85d21ad423a3c017dcfffadf18a/rugaxuxojufotu.pdf
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/e3951afe0e691c03eb43fad76d721825/fusawakujorivoj.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608780a71d74a---65344947137.pdf
- https://playerpress.com/ckfinder/userfiles/files/24725279862.pdf
- http://kappp.ru/js/ckfinder/userfiles/files/jupogakapiwozekiv.pdf
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160add2ef52e8c---16083428804.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160e47e64bd2a4---71289326710.pdf
- http://maxkbm.com/clients/2/28/28fcaa936e2ecbeb6c9a97ea0f1ab253/File/51803477618.pdf
- http://agro-pasz.pl/ckfinder/userfiles/files/89792256658.pdf
- http://markone-tools.com/upload/files/javonategixafogig.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9a231da7b---78145865796.pdf
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1608b31e171a91---32752696390.pdf
- http://adabaskimerkezi.com/upload/file/84844188025.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=intrado+power+911+manual
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f410.bin3ba615d768a52d3c9635291068b9f78a30b70bffb4f4852e6697afed9c308070 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF410 | 10648 bytes |
font_01_sfnt_off00010c82.bin1e4dd646234580813cd30e7453ef80c7427cdcec342ce21eafdd5b4b30fdee05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C82 | 17944 bytes |
font_02_sfnt_off00013bcc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BCC | 16792 bytes |
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